| # SPDX-License-Identifier: GPL-2.0 | |
| # | |
| # linux/arch/sh/boot/compressed/Makefile | |
| # | |
| # create a compressed vmlinux image from the original vmlinux | |
| # | |
| targets := vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o | |
| OBJECTS = $(obj)/head.o $(obj)/misc.o | |
| # | |
| # IMAGE_OFFSET is the load offset of the compression loader | |
| # Assign dummy values if these 2 variables are not defined, | |
| # in order to suppress error message. | |
| # | |
| CONFIG_MEMORY_START ?= 0x00400000 | |
| CONFIG_BOOT_LINK_OFFSET ?= 0x00280000 | |
| IMAGE_OFFSET := $(shell printf "0x%08x" $$(($(CONFIG_MEMORY_START)+$(CONFIG_BOOT_LINK_OFFSET)))) | |
| LIBGCC := $(shell $(CROSS-COMPILE)$(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name 2>/dev/null) | |
| LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -estartup -T $(obj)/vmlinux.lds \ | |
| --defsym output=$(CONFIG_MEMORY_START) | |
| $(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o $(LIBGCC) FORCE | |
| $(call if_changed,ld) | |
| $(obj)/vmlinux.bin: vmlinux FORCE | |
| $(call if_changed,objcopy) | |
| suffix-$(CONFIG_KERNEL_GZIP) := gzip | |
| suffix-$(CONFIG_KERNEL_LZO) := lzo | |
| $(obj)/vmlinux.bin.$(suffix-y): $(obj)/vmlinux.bin FORCE | |
| $(call if_changed,$(suffix-y)) | |
| LDFLAGS_piggy.o := -r --format binary --oformat elf32-h8300-linux -T | |
| OBJCOPYFLAGS := -O binary | |
| $(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y) FORCE | |
| $(call if_changed,ld) | |
| CFLAGS_misc.o = -O0 |